Long-working-distance microscopic imaging in a turbid medium by use of an ultrafast optical Kerr gate

Yuhu Ren; Wenjiang Tan; Yipeng Zheng; Xiaojing Liu; Junyi Tong

doi:10.1063/1.4953763

Long-working-distance microscopic imaging in a turbid medium by use of an ultrafast optical Kerr gate

Rev Sci Instrum. 2016 Jun;87(6):063708. doi: 10.1063/1.4953763.

Authors

Yuhu Ren¹, Wenjiang Tan¹, Yipeng Zheng¹, Xiaojing Liu¹, Junyi Tong²

Affiliations

¹ Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Collaborative Innovation Center of Suzhou Nano Science and Technology, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xianning-xilu 28, Xi'an 710049, China.
² Departments of Applied Physics, Xi'an University of Technology, Xi'an 710048, China.

PMID: 27370460
DOI: 10.1063/1.4953763

Abstract

We demonstrate a long-working-distance microscopic imaging of hidden objects in a turbid medium by use of an ultrafast optical Kerr gate (OKG). The results show that the working distance and the spatial resolution of the long-working-distance microscopic imaging system have been increased simultaneously compared with those of the conventional 4f OKG imaging systems. A compound lens consisting of a long-focus achromatic doublet and a microscope objective is used to increase the long working distance and ensure the sufficient spatial resolution. The microscopic OKG imaging system with a working distance of 245 mm and a maximal spatial resolution of approximately 7 μm has been performed.